CMX860D6 datasheet, PDF - EEWORLD Datasheet

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CMX860D6: DescriptionDTMF Signaling Circuit, PDSO28, SSOP-28; CategoryWireless rf/communication Telecom circuit; File Size727KB，43 Pages; ManufacturerCML Microcircuits; Websitehttp://www.cmlmicro.com/; Environmental Compliance

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CMX860D6 Overview

DTMF Signaling Circuit, PDSO28, SSOP-28

CMX860D6 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Parts packaging code	SSOP
package instruction	SSOP-28
Contacts	28
Reach Compliance Code	compliant
JESD-30 code	R-PDSO-G28
JESD-609 code	e3
length	10.2 mm
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP28,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	2 mm
Maximum slew rate	0.009 mA
Nominal supply voltage	3 V
surface mount	YES
Telecom integrated circuit types	DTMF SIGNALING CIRCUIT
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	5.3 mm
Base Number Matches	1

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CMX860

Telephone Signalling

Transceiver

D/860/5 January 2002

Provisional Issue

Features

•

V.23 & Bell 202 FSK Tx and Rx

DTMF/Tones Transmit and Receive

Line and Phone Complementary Drivers

Call Progress Decoder

Dual Tone Detection and Generation

Simple 'C-BUS' Serial Interface

Low Power Operation

‘Powersave’ Standby Mode

Applications

•

Least Cost Routers

Vending Machines

Internet Appliances

Home Management Systems

Remote Meter Reading

Alarm Systems

Cable TV Set-Top Boxes

Advanced Feature Phones

1.1

Brief Description

The CMX860 is a flexible, low-power Telephone Signalling Transceiver IC, designed for use in a wide

range of line-powered telephone equipment. The IC combines the functions of a DTMF encoder and

decoder, V.23 / Bell 202 modulator and demodulator plus call progression circuitry with analogue

switching between line and phone interfaces. Ring detection, local phone off-hook detection and a relay

driver for line hook-switch operation are also provided under the control of 'C-BUS'. The ring and hook

detectors operate whilst the remainder of the IC is powersaved, generating an interrupt to wake-up the

host µC when further processing or signalling is required.

All on-chip functions and switching arrangements are controlled via a serial bus ('C-BUS'). The CMX860

is designed to operate at 2.7V and utilises CML’s low power DTMF decoder and V.23 / Bell 202 modem

technology. It is available in 28-pin SOIC (D1), TSSOP (E1) and SSOP (D6) packages.

2002 Consumer Microcircuits Limited

Telephone Signalling Transceiver / Least Cost Router

CMX860

CONTENTS

Section

1.0

1.1

1.2

1.3

1.4

Page

Features and Applications .................................................................. 3

Brief Description.................................................................................. 3

Block Diagram ..................................................................................... 5

Signal List ............................................................................................ 6

External Components.......................................................................... 8

1.4.1 Ring Detector Interface......................................................... 10

1.4.2 Hook Detector Interface ........................................................ 11

1.4.5 RESETN pin........................................................................... 11

General Description........................................................................... 12

1.5.1 Tx USART .............................................................................. 13

1.5.2 FSK Modulator ...................................................................... 14

1.5.3 Tx Filter and Equaliser.......................................................... 14

1.5.4 DTMF/Tones Generator ........................................................ 14

1.5.5 Tx Level Control and Output Drivers ................................... 14

1.5.6 DTMF Decoder and Tone Detectors..................................... 15

1.5.7 Rx Modem Filter and Equaliser ............................................ 16

1.5.8 FSK Demodulator.................................................................. 16

1.5.9 Rx Data Register and USART ............................................... 16

1.5.10 Rx Modem Pattern Detectors................................................ 18

1.5.11 Analogue Signal Routing ..................................................... 18

1.5.12 'C-BUS' Interface ................................................................... 19

1.5.12.1

General Reset Command.............................. 19

1.5.12.2

General Control Register.............................. 21

1.5.12.3

Transmit Mode Register ............................... 23

1.5.12.4

Receive Mode Register ................................. 26

1.5.12.5

Tx Data Register............................................ 28

1.5.12.6

Rx Data Register ........................................... 28

1.5.12.7

Analogue Signal Path Register .................... 29

1.5.12.8

Status Register.............................................. 30

1.5.12.9

Programming Register.................................. 33

1.5.12.10

Other Registers ............................................. 35

Application Notes .............................................................................. 36

Performance Specification................................................................ 37

1.7.1 Electrical Performance.......................................................... 37

1.7.1.1 Absolute Maximum Ratings..................................... 37

1.7.1.2 Operating Limits....................................................... 37

1.7.1.3 Operating Characteristics ........................................ 38

1.5

1.6

1.7

2002 Consumer Microcircuits Limited

D/860/5

CMX860D6 Related Products

	CMX860D6	CMX860D1
Description	DTMF Signaling Circuit, PDSO28, SSOP-28	DTMF Signaling Circuit, PDSO28, SOIC-28
Is it lead-free?	Lead free	Lead free
Is it Rohs certified?	conform to	conform to
Parts packaging code	SSOP	SOIC
package instruction	SSOP-28	SOIC-28
Contacts	28	28
Reach Compliance Code	compliant	compliant
JESD-30 code	R-PDSO-G28	R-PDSO-G28
JESD-609 code	e3	e3
length	10.2 mm	17.88 mm
Number of functions	1	1
Number of terminals	28	28
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SSOP	SOP
Encapsulate equivalent code	SSOP28,.3	SOP28,.4
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260	260
power supply	3/5 V	3/5 V
Certification status	Not Qualified	Not Qualified
Maximum seat height	2 mm	2.67 mm
Maximum slew rate	0.009 mA	0.009 mA
Nominal supply voltage	3 V	3 V
surface mount	YES	YES
Telecom integrated circuit types	DTMF SIGNALING CIRCUIT	DTMF SIGNALING CIRCUIT
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING
Terminal pitch	0.65 mm	1.27 mm
Terminal location	DUAL	DUAL
Maximum time at peak reflow temperature	40	40
width	5.3 mm	7.425 mm
Base Number Matches	1	1

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